Front-feed device



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FRONT-FEED DEVICE Filed June 27, 1946 19 Sheets-Sheet ll WALTER A. ANDERSON Jan. 2, 1951 w. A. ANDERSON 2,535,524

FRONT-FEED DEVICE Filed June 27, 1946 19 Sheets-Sheet l2 XXXX /werz fa? WALTER A. ANDERSON Jan. 2, 1951 w. A. ANDERSON FRONT-FEED DEVICE l9 Sheets-Sheet 13 Filed June 2'7, 1946 a; w 11 525 n [/9 9/???12 at WALTER A ANDERSON fizzvney Jan. 2, 1951 w. A. ANDERSON FRONT-FEED DEVICE l9 Sheets-$heet 14 Filed June 27, 1946 Q ave/250'? WALT A. ANDERSON Jan. 2, 1951 w. A. ANDERSON FRONT-FEED DEVICE l9 Sheets-Sheet 15 Filed June 27, 1946 ave/z zaz KWALTER A. AWDL'RSON [(7 flfairze? Jan. 2, 1951 w. A. ANDERSON FRONT-FEED DEVICE l9 Sheets-Sheet 16 Filed June 27, 1946 Jan. 2, 1951 w. A. ANDERSON FRONT-FEED DEVICE ,19 Sheets-Sheet 17 Jan. 2, 1951 w. A. ANDERSON FRONT-FEED DEVICE 19 Sheets-Sheet 18 Filed June 27, 1946 M 4 w 1 a m MW w v m Mm w i 5L Q Q 2, M 53:5 xo m v m 11 N ma a 1% 1 A wztjifi mws AN xxx g 5 Q. Q 52% va N E m E Q i m m m A. M Q m 3 wg .i. w F 1 w E \r m L \T W g m5 bfi Jan. 2, 1951 Flled June 27, 1946 Patented Jan. 2, 1951 OFFICE FRONT-FEED DEVICE Walter A. Anderson, Bridgepom'Conn, assignor to Underwood Corporation, New York, N. Y., a

corporation of Delaware Application June 27,1946, Serial No. 679,722

22 Claims. 1

This invention relates to front-feeding devices for business machines, such as accounting machines, and particularly to such devices which involve a partial opening feature.

There are disclosed herein, but not claimed, inventive features relating to front-feeding facilities which have no particular cooperative relation to any partial opening provision. Such features, as well as others not constituting part of the present invention, are however contributory to producing an exceptionally efficient, reliably operative and extremely versatile accounting machine. These unclaimed ,features are the subject matter of the following divisional applications by the same inventor: Serial No. 718,913,

ary 10, 1950; Serial No. 63,965, filed December 7,

1948; Serial No. 134,537, filed December 22,1949; and Serial No. 135,479, filed December 28, 1949.

It is one general object of the present invention to Widen the scope of usefulness and increase the flexibility of accounting machines such asfthe Well-known Sundstrand accounting machine.

Another object of the invention 'is to provide in efficient association with meansfor fully opening a front-feed device for work-sheet reception, efficient means to place the front-feed .device in a partially open state, thereby to facilitate convenient and expeditious removal of one or more work-sheets.

Another object of the invention is to provide with efficient front-feeding facilities, efiicient provision to facilitate withdrawal of one of several work-sheets while the machine may be cycling.

Particularly also, it is an object'of the instant invention to provide an efficient front-feed-mec'hanism embodying a non-elevatable platen, and constructed to facilitate front-feeding and particularly also Withdrawal of work-sheets with extreme dispatch and ease.

It is furthermore an object of the invention-to produce front and/or rear feeding facilities-which are suited for advantageous handling and production of records, and which satisfy an almost unlimited number of diiferent business requirements or systems, such as systems wherein, for example, a plurality of front-fed work-sheets require introduction alongside or in front or each other,-or both, or in other relative positions.

Especially, it is also an object toprovicle lfor a partial opening or a frontefeed throat to an extent insufiicient for front-fed Work-sheets to lose their desired locations in the machine, and also insufficient for the front-feeding facilities to interfere with the operation of the typing instrumentalities, but yet sufficient to allow convenient, substantially unrestricted withdrawal of any front-fed Work-sheet or sheets.

Itis also an object to provide efficient carriagecontrolled means to fully or partially open the front-feed device.

An object ancillary to the last noted object, is to open the front-feed device to fully open positionby power derived from machine cycling action, and to open it partially under carriage control independently of machine cycling action.

.In association with a front-feed device which is capable of partial andfull opening operation, it is also an object to provide efiicient means to effect closureof the device after a full opening operation, efiiciently under supplemental control of the paper supporting carriage and an operable part, the latter of which may be in the form of amachine cycling or other key.

An object ancillary to the several preceding ones is to provide for flexibility of the control \vieided'by the carriage, thereby to expand greatly the versatilityof the machine for use in difierent' business applications.

Also to the end of greater versatility of the machine,it is an object to provide in combination with carriage-controlled facilities for partially opening a front-feed device, efficient means to open and close the front-feed device fully, such means embodying independent carriage controls for controlling both such actions.

It is also contrived to provide simple means torender a front-feed table incapable of being drawn to a fully open front-feed position and into conflicting relation with the typing instrumentalities, by application of manual force applied on said table.

In addition to the above specifically'noted objects, the invention has many other objects which are in part obvious and in part pointed out specifically as the description of the preferred embodiment of the invention proceeds.

The invention has been worked. out and .is illustrated and described as embodied. i the well known Class D Sundstrand accounting machine, the conventional features of which areldisclosed inthe patents to Sundstrand, Nos. 2,194,270- and2,289,2ifl, dated respectively, March 19,1948- and July 23, 1949. Reference to this machineand these patents may be had for clarification of features and details which are not 

